Portable and non-intervention X-ray generator tube current measuring instrument

Abstract

The invention discloses a portable and non-intervention X-ray generator tube current measuring instrument, comprising a detector and a host. The detector is connected with the host by a multi-core cable and comprises a pincerlike current sensor and a control component in the pincerlike current sensor. The detector and the host are in a dual-wire connection structure with V+ and V- wires to avoid the influence on output signals by differential voltage signals formed on a ground wire by supply currents; as a calibration factor memory module is added in the host, the detector has interchangeability; an FPGA (Field Programmable Gate Array) data processor enhances precision of measurement on narrow-pulse-width current signals; and the host and an upper computer connected with the host control range gear and zero setting of the pincerlike current sensor and obtain working conditions of the pincerlike current sensor, thereby overcoming the defect of inconvenience in host operation and data reading for a measuring person.

Description

technical field [0001] The invention relates to a portable X-ray machine tube current non-intervention measuring instrument. Background technique [0002] The measurement of X-ray machine tube current is often used in hospitals for image quality control and technical supervision departments for quality control of operation. It also has certain practical significance for X-ray machine production, installation and commissioning, and fault inspection and maintenance. [0003] Currently, clamp-on current sensors are used as primary instruments in X-ray machine tube current non-intervention measuring instruments. When the current passes through the wire, a magnetic field is generated around the wire. The clamp-on current sensor converts the magnetic field strength into a voltage signal through the Hall element. , so the clamp-on current sensor is sensitive to the geomagnetic field, so after clamping the clamp-on current sensor into the anode (or cathode) circuit of the X-ray tube...

AI Technical Summary

Problems solved by technology

[0005] Since the clamp current sensor and the host are connected by a short connection, the host is placed near the X-ray machine, and the X-ray machine will generate X-rays when it is working, so the X-ray machine is generally installed in a shielded room. When the X-ray machine tube current, the staff must be evacuated to a safe place (for example: the control room), so it is extremely inconvenient for the host to operate and read data

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